作者:Bruce A. Lefker、William A. Hada、Patrick J. McGarry
DOI:10.1016/s0040-4039(00)77064-x
日期:1994.7
An efficient synthesis of enantiomerically enriched aryllactic esters or acids has been established. Darzen's condensation of arylaldehydes with ethyl chloroacetate followed by catalytic hydrogenation gave racemic aryllactic esters. Enzyme catalyzed (lipase PS-30, Amano) hydrolysis or acetylation provided enantiomerically enriched products. EE's of 65–99% were obtained without optimization of resolution
已经建立了对映体富集的芳基酯或酸的有效合成。芳醛与氯乙酸乙酯的Darzen缩合,然后催化氢化,得到外消旋芳基酯。酶催化(脂肪酶PS-30,天野)水解或乙酰化可提供对映体富集的产品。在不优化分离度条件的情况下获得了65-99%的EE。该路线与各种杂环相容,并且已经制备了数克数量的对映异构体富集的材料。这些手性合成子可用于制备肾素抑制剂以及其他治疗剂。